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Irina-Kira [14]
3 years ago
13

Find the value of each variable using sine and cosine round your answers to the nearest tenth​

Mathematics
1 answer:
Fudgin [204]3 years ago
5 0

9514 1404 393

Answer:

  r ≈ 19.0

  s ≈ 17.7

Step-by-step explanation:

The relevant trig relations are ...

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

So, you have ...

  cos(43°) = r/26

  r = 26·cos(43°) ≈ 19.0

__

  sin(43°) = s/26

  s = 26·sin(43°) ≈ 17.7

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motikmotik

Answer:

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Step-by-step explanation:

We can use a ratio

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Step-by-step explanation:

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rodikova [14]
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(in our case Δ = 4² - (4)(2)(4) → Δ = - 32

We know that: x' = -1 + i     and x" = -1 - i

If Δ > 0 we have 2 rational solutions x' and x"

If Δ = 0 we have1 rational solution x' = x"

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That are x'= [-b+√Δ]/2.a      and x" = [-b-√Δ]/2.a

x' = 

4 0
3 years ago
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zalisa [80]

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